An analytical expression for the log-amplitude correlation function based on the Rytov approximation is derived for spherical wave propagation through an anisotropic non-Kolmogorov refractive turbulent atmosphere. The expression reduces correctly to the previously published analytic expressions for the case of spherical wave propagation through isotropic Kolmogorov turbulence. These results agree well with a wave-optics simulation based on the more general Fresnel approximation, as well as with numerical evaluations, for low-to-moderate strengths of turbulence. These results are useful for understanding the potential impact of deviations from the standard isotropic Kolmogorov spectrum.
© 2013 Optical Society of America
Atmospheric and Oceanic Optics
Original Manuscript: September 13, 2013
Revised Manuscript: November 8, 2013
Manuscript Accepted: November 25, 2013
Published: December 18, 2013
V. S. Rao Gudimetla, Richard B. Holmes, and Jim F. Riker, "Analytical expressions for the log-amplitude correlation function for spherical wave propagation through anisotropic non-Kolmogorov atmosphere," J. Opt. Soc. Am. A 31, 148-154 (2014)